document.write( "Question 822256: [ There are 80 quarters and nickels in a jar. The total value is $14.60. How many of each type of coin is there? ] \n" ); document.write( "
Algebra.Com's Answer #494726 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
---
\n" ); document.write( "x + y = 80
\n" ); document.write( "5x + 25y = 1460
\n" ); document.write( "---
\n" ); document.write( "first, solve by matrix method:
\n" ); document.write( "---
\n" ); document.write( "copy and paste the above standard form linear equations in to this solver:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "x= nickels = 27
\n" ); document.write( "y= quarters = 53
\n" ); document.write( "---
\n" ); document.write( "now solve by elimination, to check the answer:
\n" ); document.write( "---
\n" ); document.write( "-5x - 5y = -400
\n" ); document.write( "5x + 25y = 1460
\n" ); document.write( "---
\n" ); document.write( "add:
\n" ); document.write( "20y = 1060
\n" ); document.write( "---
\n" ); document.write( "answer (same as the matrix method answer):
\n" ); document.write( "x = nickels = 27
\n" ); document.write( "y = quarters = 53
\n" ); document.write( "---
\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
\n" ); document.write( " \n" ); document.write( "
\n" );